Open Monument Day

On 12 and 13 September 2026, various monuments in Amsterdam will open their doors for free for Open Monument Day. Discover 'The Architectural heritage during the 40th edition. Also explore hidden places above ground, such as clandestine churches, and listen to stories of squatters and graffiti artists. Please note: the dates and times mentioned for 2026 are subject to change and may still be amended. About Open Monument Day Amsterdam Open Monument Day is a national event where a huge number of monuments throughout the Netherlands are opened to the public. In Amsterdam, including Weesp, various locations can be visited during the weekend of 12 and 13 September 2026. More information about Open Monument Day Amsterdam can be found at amsterdam.nl/openmonumentendag or follow Open Monument Day on Facebook and Instagram . Organization Open Monument Day Amsterdam is free for everyone to attend. The event is organized by the Municipality of Amsterdam, Department of Monuments and Archeology. Come and see the city with different eyes.